The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/un.h

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    1 /*
    2  * Copyright (c) 1982, 1986, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *      This product includes software developed by the University of
   16  *      California, Berkeley and its contributors.
   17  * 4. Neither the name of the University nor the names of its contributors
   18  *    may be used to endorse or promote products derived from this software
   19  *    without specific prior written permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   31  * SUCH DAMAGE.
   32  *
   33  *      @(#)un.h        8.3 (Berkeley) 2/19/95
   34  * $FreeBSD: src/sys/sys/un.h,v 1.9.4.1 1999/09/05 08:23:15 peter Exp $
   35  */
   36 
   37 #ifndef _SYS_UN_H_
   38 #define _SYS_UN_H_
   39 
   40 #ifdef KERNEL
   41 #include <sys/unpcb.h>
   42 #endif /* KERNEL */
   43 
   44 /*
   45  * Definitions for UNIX IPC domain.
   46  */
   47 struct  sockaddr_un {
   48         u_char  sun_len;                /* sockaddr len including null */
   49         u_char  sun_family;             /* AF_UNIX */
   50         char    sun_path[104];          /* path name (gag) */
   51 };
   52 
   53 #ifdef KERNEL
   54 struct unpcb;
   55 
   56 int     uipc_usrreq __P((struct socket *so, int req, struct mbuf *m,
   57                 struct mbuf *nam, struct mbuf *control));
   58 int     unp_connect2 __P((struct socket *so, struct socket *so2));
   59 void    unp_dispose __P((struct mbuf *m));
   60 int     unp_externalize __P((struct mbuf *rights));
   61 #else /* !KERNEL */
   62 
   63 /* actual length of an initialized sockaddr_un */
   64 #define SUN_LEN(su) \
   65         (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
   66 
   67 #endif /* KERNEL */
   68 
   69 #endif /* !_SYS_UN_H_ */

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